Rev Limiter kill switch/ working around the ecu, Adding variables to a factory ecu Options

[Agent21]

Ok so I know there is a happy little pulse width modulation signal that goes to the ECU to tell it how fast you are going. I have heard this is a purple wire with white tracers. I have heard you can cut this wire or add a chip to reduce the pulses and lie to the ecu. I know it triggers the cel but I have suspicions it throws the ECU into safety mode as well. Anyone got better info?

This post has been edited by Agent21: Nov 8, 2005 - 11:22 AM

[Agent21]

Well #1 the race car is pegging at 7400 RPM and we need it to go higher. It bounces off the rev limiter on some of the longer tracks and we can't get another gear unless it is custom cut. #2 I want the ability to cut mine at will and really uncork the car.

[Kwanza26]

Well #1 the race car is pegging at 7400 RPM and we need it to go higher. It bounces off the rev limiter on some of the longer tracks and we can't get another gear unless it is custom cut.  #2 I want the ability to cut mine at will and really uncork the car.
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Why are you running a stock ECU on a race car? On a side note... get on a dyno. That'll let you know whether or not you need a higher rev limit.

This post has been edited by Kwanza26: Nov 6, 2005 - 5:06 PM